source4/winbind/wb_uid2sid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -U
   5
   6    Copyright (C) 2007-2008 Kai Blin
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/composite/composite.h"
  24 #include "winbind/wb_server.h"
  25 #include "smbd/service_task.h"
  26
  27 struct uid2sid_state {
  28         struct composite_context *ctx;
  29         struct wbsrv_service *service;
  30         struct dom_sid *sid;
  31 };
  32
  33 static void uid2sid_recv_sid(struct composite_context *ctx);
  34
  35 struct composite_context *wb_uid2sid_send(TALLOC_CTX *mem_ctx,
  36                 struct wbsrv_service *service, uid_t uid)
  37 {
  38         struct composite_context *result, *ctx;
  39         struct uid2sid_state *state;
  40         struct unixid *unixid;
  41         struct id_mapping *ids;
  42
  43         DEBUG(5, ("wb_uid2sid_send called\n"));
  44
  45         result = composite_create(mem_ctx, service->task->event_ctx);
  46         if (!result) return NULL;
  47
  48         state = talloc(result, struct uid2sid_state);
  49         if (composite_nomem(state, result)) return result;
  50
  51         state->ctx = result;
  52         result->private_data = state;
  53         state->service = service;
  54
  55         unixid = talloc(result, struct unixid);
  56         if (composite_nomem(unixid, result)) return result;
  57         unixid->id = uid;
  58         unixid->type = ID_TYPE_UID;
  59
  60         ids = talloc(result, struct id_mapping);
  61         if (composite_nomem(ids, result)) return result;
  62         ids->unixid = unixid;
  63         ids->sid = NULL;
  64
  65         ctx = wb_xids2sids_send(result, service, 1, ids);
  66         if (composite_nomem(ctx, result)) return result;
  67
  68         composite_continue(result, ctx, uid2sid_recv_sid, state);
  69         return result;
  70 }
  71
  72 static void uid2sid_recv_sid(struct composite_context *ctx)
  73 {
  74         struct uid2sid_state *state = talloc_get_type(ctx->async.private_data,
  75                                                       struct uid2sid_state);
  76         struct id_mapping *ids = NULL;
  77
  78         state->ctx->status = wb_xids2sids_recv(ctx, &ids);
  79         if (!composite_is_ok(state->ctx)) return;
  80
  81         if (!NT_STATUS_IS_OK(ids->status)) {
  82                 composite_error(state->ctx, ids->status);
  83                 return;
  84         }
  85
  86         state->sid = ids->sid;
  87
  88         composite_done(state->ctx);
  89 }
  90
  91 NTSTATUS wb_uid2sid_recv(struct composite_context *ctx, TALLOC_CTX *mem_ctx,
  92                 struct dom_sid **sid)
  93 {
  94         NTSTATUS status = composite_wait(ctx);
  95
  96         DEBUG(5, ("wb_uid2sid_recv called.\n"));
  97
  98         if (NT_STATUS_IS_OK(status)) {
  99                 struct uid2sid_state *state =
 100                         talloc_get_type(ctx->private_data,
 101                                 struct uid2sid_state);
 102                 *sid = talloc_steal(mem_ctx, state->sid);
 103         }
 104         talloc_free(ctx);
 105         return status;
 106 }
 107